mystery, problem, enigma, riddle, puzzle mean something which baffles or perplexes. mystery applies to what cannot be fully understood by reason or less strictly to whatever resists or defies explanation. …

MYSTERY definition: anything that is kept secret or remains unexplained or unknown. See examples of mystery used in a sentence.

MYSTERY meaning: 1. something strange or not known that has not yet been explained or understood: 2. a book, film…. Learn more.

Jan 11, 2026 · Mystery novels are often called “whodunnits” because they turn the reader into a detective trying to figure out the who, what, when, and how of a particular crime.

mystery noun Anything that arouses curiosity or perplexes because it is unexplained, inexplicable, or secret:

If you talk about the mystery of someone or something, you are talking about how difficult they are to understand or know about, especially when this gives them a rather strange or magical quality.

Definition of mystery noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

6 days ago · Noun mystery (countable and uncountable, plural mysteries) Something secret or unexplainable; an unknown.

Mystery definition: One that is not fully understood or that baffles or eludes the understanding; an enigma.

MYSTERY meaning: 1 : something that is not known something that is difficult to understand or explain; 2 : the quality of being difficult to understand or explain the quality of being mysterious